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Good Price Flow Control Valve Positioner Foxboro SRD991 Intelligent Digital Valve Positioner HART Fieldbus

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US $1600.00 - 2198.00/ Set
Price
Good Price Flow Control Valve Positioner Foxboro SRD991 Intelligent Digital Valve Positioner HART Fieldbus
Features Gallery Product Description Request A Quote
Features
Specifications
Input Pressure: 1.4...6 Bar
Maximum Hysteresis: 0.3 %
Ambient Air Temperature For Operation: -40...80 °C (-40...176 °F)
Communication Port Protocol: HART, 4...20 MA Profibus FOUNDATION Fieldbus
IP Degree Of Protection: IP66
Maximum Pressure: 6 Bar ,90 Psi
Basic Infomation
Brand Name: Foxboro
Model Number: SRD991
Payment & Shipping Terms
Packaging Details: cardboard box
Delivery Time: 60 work days
Payment Terms: T/T
Supply Ability: 2000 sets per year
Product Description
Product Overview

The Foxboro SRD991 Valve Positioner is a precision-engineered digital controller that converts 4-20 mA input signals into pneumatic outputs for accurate positioning of rotary and linear valve actuators. Featuring advanced piezo valve technology and HART communication, it ensures fast response times and stable operation in dynamic processes. Designed for simplicity, the SRD991 offers easy calibration with push-button controls and a local display, making it ideal for chemical, oil and gas, and power generation industries. Its compact design and low air consumption enhance efficiency and reliability in automated valve systems.

Key Features
  • Precision Piezo Technology: Fast, accurate positioning with minimal hysteresis.
  • HART Communication: Digital access for configuration and diagnostics.
  • Simple Calibration: Push-button zero/span adjustment for quick setup.
  • Local Display: LCD for real-time monitoring and status.
  • Low Air Consumption: Efficient operation reduces energy costs.
  • Compact Enclosure: IP66 rating for harsh environments.
  • Universal Mounting: Compatible with rotary and linear actuators.
  • Robust Vibration Resistance: Stable performance in dynamic conditions.
Technical Specifications
Parameter Specification
Input Signal 4-20 mA HART
Air Supply Pressure 1.4–7 bar (20–100 psi)
Stroke Range Linear: 10–100 mm; Rotary: 90–120°
Linearity ±0.5% of span
Hysteresis ±0.3% of span
Repeatability ±0.2% of span
Temperature Range -40°C to +80°C (-40°F to +176°F)
Enclosure Rating IP66
Power Consumption <1 W
Certifications ATEX, FM, CSA, SIL 2
Applications

The Foxboro SRD991 Valve Positioner is optimized for precision control in industrial processes:

  • Chemical Processing: Accurate valve positioning in reactors.
  • Oil and Gas: Reliable actuator control in pipelines.
  • Power Generation: Precise flow regulation in turbines.
  • Water Treatment: Flow control in treatment plants.
  • Pharmaceutical: Hygienic valve automation.
Frequently Asked Questions
What is the SRD991's response time?

Fast, with piezo technology for quick positioning.

Does it support HART?

Yes, for digital configuration and diagnostics.

Is it vibration-resistant?

Yes, designed for dynamic environments.

What actuators does it control?

Rotary and linear, single/double-acting.

How is calibration done?

Push-button zero/span for simple adjustment.

Contact Us

For more information about the Foxboro SRD991 Valve Positioner, pricing, or to request a demo, contact our team:

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Get in touch with us
Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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